Gabion mattresses are used for river bank and scour protection, channel linings for erosion control, and embankment stability. They are filled with rock at the project site to form flexible, permeable, monolithic structures to promote rapid growth of natural vegetation. The base section of the Gabion mattress is divided into compartments and filled with stones at the project site. With lids secured, Gabion mattresses form flexible, permeable, monolithic structures.
Environmental Friendly: Gabion mattresses are environmentally friendly products. The blending of Gabion mattress structures into the environment is rapid and pleasing. The voids in the rockfill become progressively filled with silt, promoting vegetation growth which is essential to the preservation and maintenance of the ecological balance of the surrounding environment.
Flexibility: The woven mesh system has the capability of withstanding unexpected and/or localized stresses due to ground settlements and scour by deflection while maintaining its structural integrity.
Permeability The stone fill allows the water to seep through the structure while retaining the soil, therefore no additional drainage is required to relieve the hydrostatic pressures.
Cost Effective, Easy to Build Gabion mattress construction does not require skilled labor because they are very easy to build. Standard construction equipment can be used. Structures can be built in stages, if necessary, and baskets can be prefilled and launched to enable the installation under water.
Advantages and distinctions of Gabion mattresses: This is a mattress shaped version of the gabion used mainly for erosion control when the retaining properties of box gabions are not required. Their strength lies in their double twisted hexagonal mesh of steel wire which is reinforced by selvedges of heavier wire running along the edges.
The base section is divided into compartments to restrict the movement of stone and strengthen the structure.
The lid is supplied as a separate panel.
The wire will not unravel even when cut.
Assembly is easy, requiring no specialized labor and nearby rock is used for fill.
Free drainage and 30-35% voids allow vegetation to grow
| Properties | Gabions | Mattresses |
|---|---|---|
| Wire Diameter (mm) | 2.7 (min) | 2.0(min) |
| Normal Mesh Size(mm) | 80X100 | 60X80 |
| Selvedge Wire Diameter (mm) | 3.4 (min) | 2.4(min) |
| Binding Wire Diameter (mm) | 2.2 (min) | 2.2 (min) |
| Galrnac Coating (gsm) | 245(min) | 215(min) |
| PVC Coating (mm) | 0.50 (min) Gray | 0.50 (min) Grey |
| Rock Fill Size AS2758.4-2000 | 100mm (min) 250 (max) | 75(min) to 2/3 the thickness of the mattress or 250mm whichever is the lesser |
| Dimensions (m) (length X width X height) | 1x1x1 2×0.5×0.5 2x1x0.5 2x1x1 2×1.5×1 4x1x0.5 4x1x1 6x2x0.50 | 2x1x0.33 6x2x0.17 6x2x0.23 6x2x0.30 |
